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Forecast confidence: High · models disagree by 3°F

Rosemead weather

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Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 82° in Rosemead today. Tomorrow looks mostly clear around 85°, with a 0% chance of rain.

82°63°
85°62°
83°65°
79°66°
83°65°
88°67°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±5°Mondaysplit ±5°Tuesdaysplit ±5°Wednesdaysplit ±6°
NWSNational Blend (NBM)
80°
Mostly clear
Today 80°·Low 63°·Rain 0%
AmericanNOAA GFS
83°
Cloudy
Today 83°·Low 63°·Rain 0%
EuropeanECMWF
83°
Mostly clear
Today 83°·Low 64°·Rain 0%
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Rosemead weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Rosemead…

Rosemead weather in numbers

from 30 years of measured normals

Rosemead swings 45°F across the year, from 90°F highs in July to 45°F lows in January, and February is usually the wettest month in a year that brings about 30 in of precipitation.

Warmest month
July
90°F average high
Coldest month
January
45°F average low
Wettest month
February
30 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
January, March, April and May
Residents
55,000
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The weather map: all three models at once

NWS, American, European side by side around Rosemead and nearby towns.Live rain radar →
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Rosemead hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Rosemead 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Mostly clear
82° 63°
models agree
Tomorrow
Mostly clear
85° 62°
models agree
Sun
Cloudy
83° 65°
±5°
Mon
Partly cloudy
79° 66°
±5°
Tue
Mostly clear
83° 65°
±5°
Wed
Clear
88° 67°
±6°
Thu
Clear
86° 69°
models agree
Fri
Mostly clear
86° 70°
±11°
Sat
Mostly clear
88° 70°
±13°
Sun
Cloudy
91° 72°
±16°
Mon
Mostly clear
93° 73°
±17°
Tue
Cloudy
94° 75°
models agree
Wed
Clear
85° 69°
±6°
Thu
Clear
80° 68°
±6°

Rosemead, California (CA) is at its warmest in Jul (average highs near 90°F) and coldest in Jan (lows around 45°F), with roughly 30 in of precipitation across the year. Below, compare what NWS, American, European forecast for Rosemead right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Rosemead climate by month

average daytime high and overnight low across a typical year
Jan
62°
45°
Feb
62°
45°
Mar
63°
47°
Apr
72°
50°
May
74°
54°
Jun
80°
58°
Jul
90°
63°
Aug
89°
64°
Sep
85°
63°
Oct
83°
58°
Nov
73°
50°
Dec
68°
49°

Which forecast is most accurate in Rosemead?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
96
/100rank #1
91±0.9°F98±0.8 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
90
/100rank #2
82±1.8°F94±1.8 mph9597% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°80° to 83°models agree0% to 0% chance
Tomorrow±3°83° to 86°models agree0% to 0% chance
Sun±5°80° to 85°±2%0% to 2% chance
Mon±5°77° to 82°±1%1% to 2% chance
Tue±5°80° to 85°±1%0% to 1% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Rosemead

today, local time
Sunrise
06:37
Sunset
18:54
Daylight
12h 17m

Common questions

What's the weather in Rosemead today?
On this page we show what NWS, American, European each forecast for Rosemead today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Rosemead today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Rosemead and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Rosemead?
Over the last 30 days, the European model has been the most accurate for Rosemead (CheckWeather Score 96/100), ahead of the American at 90. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Rosemead?
July is typically the warmest month in Rosemead, with average highs around 90°F.
How cold does Rosemead get?
The coldest month in Rosemead is January, when overnight lows average about 45°F.
How much rain does Rosemead get?
Rosemead sees roughly 30 in of precipitation a year, with February usually the wettest month.

Nearby

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